Playing Multiple Audio Files in Sequence

[Desmond]

Playing Multiple Audio Files in Sequence

Document ID: IR10029

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The information in this article applies to:

• AutoPlay Media Studio 5.0 Standard Edition
• AutoPlay Media Studio 5.0 Professional Edition

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SUMMARY

This article describes how to play multiple video files in sequence.

DISCUSSION

In AutoPlay Media Studio 5.0, it is possible to play one audio file after another using the On Audio event.

As an example, we will create a project that when run will load three files into a table, and play them back-to-back until the third song is finished.

To accomplish this:

1. Insert the following code into your Global Functions (click Project, click Global Functions):

   -- keep track of the audio files
   
   
   audio_count = 1;
   
   
   --load desired audio files into a table
   
   
   audio = {
   
   
        "Autoplay\\Audio\\audio_file1.ogg",
   
   
        "Autoplay\\Audio\\audio_file2.ogg",
   
   
        "Autoplay\\Audio\\audio_file3.ogg"
   
   
   };          

2. Insert the following code into the On Show event of your page:

   Audio.Load(CHANNEL_USER1, audio[audio_count], true, false);

3. Insert the following code into the On Audio event of your page:

   if e_State == "Finish" then
   
   
        audio_count = audio_count + 1;
   
   
        --ensure a valid file will be loaded
   
   
        if audio_count < Table.Count(audio)+1 then
   
   
             Audio.Load(CHANNEL_USER1, audio[audio_count], true, false);
   
   
        end
   
   
   end

MORE INFORMATION

For more information please see the following topics in the AutoPlay Media Studio 5.0 help file:

• Program Reference | Actions | Audio | Audio.Load

KEYWORDS: AutoPlay Media Studio 5.0, Load, Audio, Sound, Play, Multiple Files

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Last reviewed: September 26, 2003
Copyright © 2003 Indigo Rose Corporation. All rights reserved.

[threaded]

Well, I started with this thread in how to create a pseudo playlist and have ams play it...I did some work on this and came up with a way to play audio in sequence and when it reaches the end, it loops back to the beginning. this is what I have..(maybe this will find its way into the help file as a better method??)

in global functions

-- keep track of the audio files
audio_count = 1;

--loads desired audio files into a table
audio = File.Find("Autoplay\\Audio\\", "??.ogg", false, true, nil, nil);

notice the stuff in File.Find...please change to suit your needs. All my audio is in Autoplay\Audio and is named numerically with only 2 numbers...01-14 for example.


in page on show

Audio.Load(CHANNEL_BACKGROUND, audio[audio_count], true, false);

in page on audio

if e_State == "Finish" then
    audio_count = audio_count + 1;
    --ensures a valid file will be loaded
    if audio_count < Table.Count(audio)+1 then
        Audio.Load(CHANNEL_BACKGROUND, audio[audio_count], true, false);
    else
        audio_count=1
        Audio.Load(CHANNEL_BACKGROUND, audio[audio_count], true, false);
    end
end

[Intrigued]

In the last section... I do see a small area you can optimize (granted... it's not much to optimize) a tad.

Note: Take out what's in red and insert what is in green.

if e_State == "Finish" then
    audio_count = audio_count + 1;
    --ensures a valid file will be loaded
    if audio_count <= Table.Count(audio)+1 then
        Audio.Load(CHANNEL_BACKGROUND, audio[audio_count], true, false);
    else
        audio_count=1
        Audio.Load(CHANNEL_BACKGROUND, audio[audio_count], true, false);
    end
end

[threaded]

couldnt it just be like this...I dunno and havent tested your observation or this...just in theory, this should be right...

    if audio_count = Table.Count(audio) then

[Intrigued]

Originally Posted by threaded

couldnt it just be like this...I dunno and havent tested your observation or this...just in theory, this should be right...

    if audio_count = Table.Count(audio) then

I believe the best approach mixed in with good error checking... would be what I presented. But, that's my two cents worth.

[threaded]

I dont know if you misunderstood what I typed or if I am misunderstanding you. I meant leave the rest of the code the same (I need the rest to get the final result I want) But in mathemtaical terms if this is true
1 < 1 + 1...then 1 = 1 is true also (this is derived from you comment to remove the +1 and add an =)

[Intrigued]

Here's a breakdown of what the operators mean and thus one can figure out the math end.

http://www.indigorose.com/webhelp/am..._Operators.htm

Specifically this line is the one to note for our conversation:

<= (less-than or equal to)